Bridget Fonda was born into a household of actors. She was born in Los Angeles, California. Her father Peter Fonda, relative Jane Fonda, and grandfather Henry Fonda are all actors. Her mother is a well-known sculptor by the name of Susan Jane Brewer.
Her father subsequently married Portia Rebecca Crockett after her parents divorced. Peter and Portia attempted to rear Justin, Bridget’s brother, and Thomas McGuane Jr., an older stepbrother, in the south region of Livingston, Montana as well as Coldwater Canyon, Los Angeles.